Can I use this on a cold-start boiler

always test the relay when replacing the 11972

Optimized Airflow Control: Reduces hysteresis in the damper linkage

it is standard practice to utilize the dedicated LP SKU to ensure the spring regulator provides the necessary 10" WC to 11" WC required for propane safety

Universal 4-Terminal Design: Simplifies wiring into existing contactors and limit controls

Carrier 06EA660167 Crankcase Heater 319825-402 Can I use this onThe Carrier 06EA660167 Crankcase Heater is a critical OEM replacement part engineered for high performance compressor protection in residential and light commercial HVAC systems. This insertion type crankcase heater operates at 115V and delivers 180W of consistent thermal energy to the compressor oil reservoir. By maintaining a temperature higher than the coldest part of the system, it effectively prevents liquid refrigerant migration into the